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Proceedings Paper

Scidar: laser- and LED-based wind sensing by scintillation detection and ranging
Author(s): Werner K. Graber; Markus Furger; Lionel Poggio
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Paper Abstract

A He-Ne laser based profiler for atmospheric wind measurements across a laser beam is compared to an instrument using incoherent infrared light from a photodiode tranmitter. Both optical crosswind profilers use the scintillation of the light source to measure the average wind across the light path. Several techniques to derive the wind velocity from the normalized time- lagged covariance function of two narrow spaced receivers are tested. Nine conventional wind sensors were placed along a 1 km long test path to get a reference wind distribution for the instruments. The tests performed over a wide variety of different weather situations with low to high wind velocities and different turbulent conditions reveal a good performance of the IR scintillometer.

Paper Details

Date Published: 15 September 1995
PDF: 9 pages
Proc. SPIE 2505, Lidar and Atmospheric Sensing, (15 September 1995); doi: 10.1117/12.219638
Show Author Affiliations
Werner K. Graber, Paul Scherrer Institute (Switzerland)
Markus Furger, Paul Scherrer Institute (Switzerland)
Lionel Poggio, Paul Scherrer Institute (Switzerland)

Published in SPIE Proceedings Vol. 2505:
Lidar and Atmospheric Sensing
Richard J. Becherer, Editor(s)

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